Ubisoft is now releasing a new patch to fix what ails Far Cry 4, this time focusing on screen bugs.
Patch 1.4.0 removes two screen bug situations:
The screen turning black while booting up the game.
The screen turning grey near the end of the Outpost Master missions.
Some fans seem to still get black screen issues, but with the pace of Ubi’s fixes, it will have to wait for the next patch.